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156

Lathe Tools.

and nut E on the right is for releasing the keys or for stead)*"
them. This tool is made by the Britannia Company.
>/ Cutting Tools for Lathes.—There are various opini1
on the proper shapes of these. Fig. 155 shews the most comii^
where A is the plan of a straight tool, B that of a right hand H
and c of a left hand tool; D being elevation for all three. Tb

1.;

PLAN  OF LIFT-HANQ root.